JP2009061407A - Settling apparatus, flocculating system and manufacturing method of settling apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a settling apparatus and a flocculating system easy for cleaning without causing reduction in strength, and a manufacturing method of the settling apparatus. <P>SOLUTION: The settling apparatus is provided, wherein a plurality of bulkhead members 26 are disposed parallel to each other and spaced at prescribed distance, a plurality of partition members 27 are disposed between and along the bulkhead members 26 and are tilted toward the disposed direction at a prescribed angle and a plurality of rows are composed of the plurality of partition members 27, wherein the plurality of rows are composed of: a plurality of first rows 32 which are composed of partition members 27 each tilted in one direction of two directions along the disposed direction of the partition members 27; and a plurality of second rows 33 composed of the partition members 27 each tilted in the other direction, wherein at least one rows of the respective first and second rows 32, 33 are continuously disposed in the disposed direction of the bulkhead members 26, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sedimentation device, a sedimentation treatment system, and a method for manufacturing a sedimentation device for promoting sedimentation of floating substances contained in water flowing into a sedimentation basin of a water treatment facility.

  In general, for example, a water treatment facility that purifies water taken from a river is provided with a sedimentation basin for sedimenting suspended matters such as sludge contained in water. It has been proposed to install a sedimentation device for improving the sedimentation efficiency of suspended matter in such a sedimentation basin (see, for example, Patent Document 1).

  The settling device includes a plurality of partition members arranged in parallel and at predetermined intervals, and a plurality of partition members arranged between the partition members and partitioning a space between the partition members into a plurality of flow paths. With. Each partition member is arranged at equal intervals along each partition member. The size of each partition member along the arrangement direction of the partition members, that is, the size of the interval between the partition members is substantially equal to the size of the interval between the partition members. By arranging each partition member between the partition members, a plurality of flow paths having a rectangular cross section are formed between the partition members. Moreover, each partition member inclines at the same angle toward the arrangement direction of each partition member, respectively. The inclination direction of each partition member is the same in each row constituted by each partition member, and is different between adjacent rows. Thus, when a load is applied to the settling device from above, the force acting on each partition member inclined in one direction and the force acting on each partition member inclined in the other direction are offset by a so-called bracing effect. Therefore, the settling device is prevented from being greatly deformed by the load. The sedimentation device is disposed in the sedimentation basin near the water surface so that each partition member is erected along the vertical direction.

  When the water level in the settling pond rises, water flows into each flow path formed between the partition members. At this time, since each partition member is inclined as described above, when the suspended matter contained in the water flowing into each flow channel sinks, many suspended matter reaches the bottom of the sedimentation basin. It reaches the inclined surface of the partition member before it is done. As a result, the distance required for the suspended matter rising near the water surface to settle is shortened, so the time from when the suspended matter rises near the water surface to sedimentation is shortened. Therefore, compared to the case where no settling device is installed in the settling basin, the amount of suspended matter that settles per unit time increases, so the sedimentation efficiency of suspended matter is improved. Moreover, since each partition member inclines, the sedimentation area per unit area of the bottom face of a sedimentation tank increases substantially. As a result, the amount of suspended matter that can settle per unit time increases, so that the ability to collect suspended matter is improved compared to the case where no sedimentation device is installed in the sedimentation basin.

In such a settling device, in order to remove the suspended matter deposited on the inclined surface after having settled on the inclined surface of each partition member without sliding down on the inclined surface, Cleaning is performed. At the time of washing the settling device, for example, high pressure washing water is sprayed from above the assembly into each flow path, thereby applying pressure from the high pressure washing water to the suspended matter deposited on the inclined surface of each partition member. Thereby, the suspended | floating matter deposited on the inclined surface can be peeled from the inclined surface.
Japanese Utility Model Publication No. 62-194404

  By the way, when washing the sedimentation device, high-pressure washing water is injected into each flow path along each inclined partition member in order to more surely remove the suspended matter accumulated on the inclined surface of each partition member from the inclined surface. There is a need to.

  However, since the inclination direction of each partition member is the same in each row and is different between the rows adjacent to each other, it is necessary to change the injection direction of the high-pressure washing water for each row. When the rows are formed, the washing operation of the settling device becomes complicated.

  In order to easily wash the settling device, it is conceivable that all the slanting directions of the partition members are the same, but it is not possible to secure the strength against the load from above as described above.

  Therefore, an object of the present invention is to provide a sedimentation device, a sedimentation processing system, and a method for manufacturing the sedimentation device that can be easily washed without causing a decrease in strength.

  In order to solve the above-mentioned problem, the invention described in claim 1 is a settling device which is arranged in a settling basin and promotes the settling of suspended matter contained in water flowing into the settling pond, A plurality of partition members arranged in parallel and at a predetermined interval, and a predetermined interval along each partition member between the partition members to partition the space between the partition members into a plurality of flow paths. And a plurality of partition members that are inclined at a predetermined angle toward the array direction, and the plurality of rows configured by the partition members respectively arranged between the partition members are A plurality of first rows composed of the partition members inclined in one direction among two directions along the arrangement direction of the partition members, and a plurality of second rows composed of the partition members inclined in the other direction. And each of the first At least one of the columns of the row and each second column is characterized in that it is arranged continuously in the arranging direction of the partition member.

  According to a second aspect of the present invention, in the first aspect of the present invention, the length dimension of the partition members along the arrangement direction of the partition members is larger than the size of the interval between the partition members. It is characterized by that.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein each partition member is a tube member having a rectangular cross section, and each tube member is an array of the partition members. A pair of side walls opposed to each other in a direction, and a pair of end walls facing the pair of partition members sandwiching the tube members and connecting the side walls to each other, and each end wall includes the partition walls. It is fixed to a member.

  The invention according to claim 4 is the invention according to claim 3, wherein each of the tube members constituting at least one of the first rows and the second rows is respectively One of the rows is alternately arranged in the arrangement direction of the flow paths and the partition members.

  The invention according to claim 5 is the invention according to claim 4, wherein each of the partition members has a rectangular shape extending along the arrangement direction of the partition members, The flow path facing each corner of each partition wall member is provided with a reinforcing member that allows water to flow into the flow path and reinforces each corner. .

  The invention according to claim 6 is the invention according to claim 4 or 5, characterized in that the number of the rows constituted by the respective pipe members is an even number.

  The invention according to claim 7 is the invention according to claim 6, wherein the number of the columns is four or more.

  The invention according to claim 8 is a sedimentation basin into which water flows, a plurality of sedimentation devices arranged in the sedimentation basin to promote sedimentation of suspended matter contained in the water that has flowed into the sedimentation basin, A sedimentation treatment system comprising a water collection trough disposed in a settling basin above each settling device and collecting water passing through each settling device, wherein each settling device is parallel and has a predetermined A plurality of partition members arranged at intervals, and a plurality of partition members arranged at predetermined intervals along the partition members between the partition members so as to partition a space between the partition members into a plurality of flow paths. A plurality of partition members inclined at a predetermined angle toward the arrangement direction, and the respective partition members are arranged adjacent to each other in parallel, and are arranged between the respective partition members. Each partition member The plurality of rows configured include a plurality of first rows configured by the partition members that are inclined in one direction among two directions along the arrangement direction of the partition members, and the partitions that are inclined in the other direction. A plurality of second rows made of members, and at least one of the first rows and the second rows is continuous in the arrangement direction of the partition members. It is characterized by being arranged.

  According to a ninth aspect of the present invention, there is provided a plurality of partition members that are arranged in parallel and at a predetermined interval, and between the partition members so as to partition a space between the partition members into a plurality of flow paths. A settling device comprising a plurality of pipe members arranged at predetermined intervals along each of the partition members, and one side of the partition member among the plurality of partition members, The pipe members arranged at predetermined intervals in the longitudinal direction of the partition wall member and inclined from one end to the other end of the partition wall member are respectively attached to the partition wall member, whereby both ends of the partition wall member are respectively Forming at least two first assemblies in which tube members are arranged; one side of the partition member separate from the partition member of each first assembly, the upper end of the first assembly Located between the upper ends of the pipe members The pipe members disposed so as to be inclined in the same direction as or in the opposite direction to the inclination direction of the pipe members of the first assembly are respectively attached to the partition members, whereby the flow paths are respectively provided at both ends of the partition members. Forming at least two second assemblies formed with one of the first assemblies, the pipe members of the first assembly facing the other surface of the partition member of the second assembly. Arranging the one first assembly so that the pipe members of the first assembly are respectively attached to the other surface of the partition member of the one second assembly; The other second assembly is disposed so that each pipe member of the other second assembly faces the other surface of the partition member of the other first assembly, Each of the tube members of the second assembly of each of the other first assemblies. It is attached to the other surface of the partition wall member, and the upper end position of each tube member of the other first assembly is positioned between the tube members of the one second assembly. In addition, in a state where the other first assembly and the one second assembly are arranged close to each other, each of the tube members of the one second assembly and the other first assembly The partition member different from the partition members of the first assembly and the second assembly is inserted between the pipe members of the assembly, and one of the partition members is inserted. Attaching each pipe member of the one second assembly to a surface, and attaching each pipe member of the other first assembly to the other surface of the inserted partition member. It is characterized by that.

  According to the first aspect of the present invention, each of the plurality of rows formed by the partition members arranged between the partition members is inclined in one of the two directions along the arrangement direction of the partition members. It is comprised by the some 1st row | line comprised by the partition member, and the some 2nd row | line | column comprised by each partition member which inclines in another direction. From this, when a load is applied to the settling device from above, most of the force acting on each partition member inclined in one direction and the force acting on each partition member inclined in the other direction can be offset. it can. This prevents the settling device from being greatly deformed by the load. Moreover, the fall of the intensity | strength of a sedimentation apparatus by making all the inclination directions of each partition member the same is not caused.

  In addition, according to the first aspect of the present invention, the plurality of first rows configured by the partition members that are inclined in one direction out of the two directions along the arrangement direction of the partition members, and the other direction are inclined. At least one of the plurality of second rows constituted by the partition members is continuously arranged in the arrangement direction of the partition members.

  From this, when each 1st row | line | column among each 1st row | line | column and each 2nd row | line | column is arrange | positioned in order from the space located in one edge among each said space in the space between each partition member. The other row is disposed in each remaining space including a space located at the other end of each space. In this case, when washing the settling device, first, the high pressure washing is performed in each flow path in each of the one row with the partition member constituting each of the one row being aligned with the injection direction of the high pressure washing water. Each flow path in each one row is washed by jetting water, and then the direction in which the high-pressure washing water is jetted is changed so as to follow each partition member constituting each other row. Thus, each channel can be cleaned by spraying high-pressure cleaning water into each channel in each of the other rows. Therefore, in this case, it is only necessary to change the injection direction of the high-pressure washing water once when washing the settling device.

  In addition, when each of the one row is continuously arranged in the arrangement direction of each partition member in each space excluding at least both ends of each space between the partition members, each other column is It arrange | positions in each remaining space including the space of at least both ends among spaces. In this case, when washing the settling device, first, each flow in the other row is arranged in a state in which the partition member constituting the other row arranged at one end is aligned with the injection direction of the high-pressure washing water. Each flow passage is washed by jetting high-pressure washing water into the passage, and subsequently, the jet direction of the high-pressure washing water is changed along each partition member constituting each of the one row. Each flow path is cleaned by spraying high-pressure washing water into each flow path in each said one row, and further along each partition member constituting the other row arranged at the other end. Each of the flow paths can be cleaned by changing the jet direction of the high-pressure wash water and injecting the high-pressure wash water into each flow path in the other row in this state. Therefore, in this case, the injection direction of the high-pressure washing water may be changed twice when washing the settling device.

  From the above, it is possible to wash a plurality of rows continuously with the injection direction of the high-pressure washing water fixed, so even when many rows are formed in the settling device, when washing the settling device In addition, it is possible to reliably prevent the complexity of the cleaning operation as in the conventional case where the injection direction of the high-pressure cleaning water needs to be changed for each row.

  Therefore, it is possible to reliably and easily clean the settling device without causing a decrease in the strength of the settling device.

  Furthermore, since each partition member is inclined, when the suspended matter contained in the water flowing into each flow path formed between the partition members settles, many suspended matter is placed on the bottom surface of the sedimentation basin. It reaches the inclined surface of the partition member before reaching. This shortens the time it takes for suspended matter to rise near the surface of the water and settles, so that the sedimentation efficiency of suspended matter can be ensured as compared to the case where no sedimentation device is installed in the sedimentation basin, as in the past. Can be improved.

  Moreover, since each partition member inclines, the sedimentation area per unit area of the bottom face of a sedimentation tank increases substantially. As a result, as in the prior art, the ability to collect suspended solids can be reliably improved.

  According to invention of Claim 2, the length dimension of each partition member along the sequence direction of each partition member is larger than the magnitude | size of the space | interval between these partition members.

  In recent years, in order to improve the assembly workability of the settling device in order to reduce the manufacturing cost of the settling device, it is desired to reduce the number of partition members used in the settling device.

  In order to reduce the number of partition members, it is conceivable to simply reduce the number of partition members constituting each row without changing the interval between the partition members constituting each row.

  However, in this case, since the length dimension of the settling device along the arrangement direction of each partition member becomes small, when a plurality of settling devices are spread in a predetermined region of the settling basin, compared to before the number of partition members is reduced. Many sedimentation devices are required. For this reason, the operation | work which arrange | positions each sedimentation apparatus in a sedimentation basin becomes complicated.

  Therefore, the number of partition members constituting each row is reduced, and the size of the interval between the partition members constituting each row is changed so that the length dimension of the settling device does not change. Can be considered.

  However, the collection capacity of the suspended matter of the settling device, that is, the size of the settling area depends on the size of the interval between the partition members, as is well known. Therefore, if the interval between the partition members is changed, there is a possibility that the collection ability of the sedimentation device is reduced.

  In order to reduce the number of partition members without changing the length dimension of the settling device and the spacing between the partition members, it is conceivable to reduce the number of rows formed by the partition members.

  However, in this case, since the length dimension of the settling device along the arrangement direction of each partition member becomes small, when laying a plurality of settling devices in a predetermined region of the settling basin, compared to before reducing the number of rows Many sedimentation devices are required. For this reason, the operation | work which arrange | positions each sedimentation apparatus in a sedimentation basin becomes complicated similarly to the case where the number of partition members is reduced, without changing the space | interval between each partition member.

  On the other hand, according to the present invention, as described above, each partition member is made longer than the size of the interval between the partition members by making the length dimension of each partition member along the arrangement direction of each partition member larger. The length dimension of each partition member without changing the length dimension of the settling device along the arrangement direction of the members, the length dimension of the settling device along the arrangement direction of each partition member, and the interval between the partition members Compared to the conventional case where is substantially equal to the size of the interval between the partition members, the number of rows formed by the partition members can be reduced.

  Thereby, the arrangement of each settling device in the settling basin is complicated by changing each length dimension of the settling device, or the size of the interval between the partition members is changed by changing the size of the settling device. The number of partition members can be surely reduced without causing a reduction in collection capability.

  Moreover, even when the length dimension of each partition member along the arrangement direction of each partition member is increased, as long as the length dimension of the sedimentation apparatus along the arrangement direction of each partition member does not change, The collection capacity, that is, the size of the sedimentation area does not change. Therefore, the collection capacity of the settling device is not reduced by increasing the length of each partition member along the arrangement direction of the partition members.

  According to invention of Claim 3, since the pipe member which is a partition member is fixed to each partition member by the pair of end walls, like the case where the partition member is comprised by the plate member, for example. Compared with the case where the plate member is fixed to each partition member at its end face, the contact area of the partition member to each partition member can be reliably increased. Thereby, the fixed strength of the partition member to each partition member can be reliably increased. Moreover, since the pipe member has higher strength against bending force than the plate member, the strength of the entire settling device can be increased by configuring the partition member with the pipe member. Further, by forming the partition member with a pipe member, a flow path can be formed between the respective pipe members between the respective partition members, and the inside of each pipe member can be used as the flow path.

  According to invention of Claim 4, each said tube member which comprises each said one row | line | column arrange | positioned continuously at least in the sequence direction of a partition member among each 1st row | line | column and each 2nd row | line | column is In addition, since the flow paths and the partition wall members are alternately arranged between the one rows, the flow paths in the one row are adjacent to each other. The rows are not adjacent to each other, and the tube members are necessarily adjacent to each other between the rows adjacent to each other. Thereby, when water flows in each flow path, the pressure from the water can be received by each partition member and each tube member adjacent to each flow path via the partition member. Therefore, compared with the case where the pressure from the water flowing in the flow path is received only by the partition wall member as in the case where the flow paths are adjacent to each other between the one row where the inclination directions of the tube members are the same, Thus, deformation of the partition wall member due to pressure received from water can be reliably prevented.

  According to the fifth aspect of the present invention, each partition member has a rectangular shape extending along the direction of arrangement of the partition members, and the flow facing each corner of each partition member in each flow path. A reinforcing member is provided in the path to allow water to flow into the flow path and reinforce each corner.

  When the pipe members are arranged so that the flow paths formed between the pipe members and the arrangement direction of the partition members are alternately arranged between the partition members, the number of rows constituted by the partition members For example, if there are four, the flow paths may be formed without arranging the pipe members at both ends or at one of the ends of the first and fourth rows.

  In this case, the flow paths formed at the ends of the first and fourth rows are defined by the side wall of the pipe member adjacent to the flow path and the corners of the pair of partition members that sandwich the pipe member. It opens to the direction orthogonal to the arrangement direction of the members and outward in the longitudinal direction of each partition member. For this reason, the front-end | tip of the corner | angular part of each partition member which defines the said flow path becomes a free end. Therefore, when a bending force that bends the corners is applied to the corners of each partition wall member, most of the bending forces are not received, and the corners may be bent or deformed.

  On the other hand, according to the present invention, as described above, the reinforcing member for reinforcing each corner is provided in the channel facing each corner of each partition member among the channels. Therefore, when a bending force that bends the corner acts on the corner of each partition wall member whose tip is a free end, it is surely suppressed that the corner is bent and deformed by the reinforcing action of the reinforcing member. can do. Further, since the reinforcing member allows water to flow into the flow path, it is possible to reliably prevent the precipitation effect due to the flow path in which the reinforcing member is disposed from being reduced.

  According to the invention described in claim 6, since the number of rows formed by the tube members is an even number, the flow paths formed between the tube members between the partition members and the arrangement direction of the partition members When the plurality of settling devices in which the respective tube members are arranged alternately are arranged adjacent to each other so that the arrangement directions of the respective tube members coincide with each other, the two adjacent settling devices are adjacent to each other. The flow paths between the tube members constituting one row are adjacent to the tube members via the partition members between the sedimentation devices adjacent to each other. Thus, even when the inclination directions of the tube members constituting the two rows adjacent to each other between the adjacent sedimentation devices are the same, water flows into the flow paths adjacent to each other between the sedimentation devices. Then, the pressure acting from the water on the partition members adjacent to each other between the settling devices is received by the partition members adjacent to the partition members and the pipe members adjacent to the partition members. Therefore, compared with the case where each flow path in each row | line | column where the inclination direction of each tube member is mutually the same between each adjacent sedimentation apparatus, it adjoins between each sedimentation apparatus, respectively, of the partition member by the pressure received from water Deformation can be reliably prevented.

  According to the invention described in claim 7, since the number of rows formed by each pipe member is an even number of 4 or more, for example, the number of rows of the settling device in which the number of rows is 7 is changed to 4. In this case, it is sufficient to change the distance between the partition members and the width dimension of each side wall of each pipe member to 1.75 times the size of the original shape. Thus, as the number of rows is changed from 7 to 2, the strength of each side wall with respect to the bending force is not greatly reduced compared to that in the original shape. Therefore, the number of rows of settling devices can be reduced without causing a significant decrease in strength with respect to the bending force of the entire pipe member.

  According to the eighth aspect of the present invention, the plurality of rows formed by the partition members respectively arranged between the partition members of each settling device are one direction out of two directions along the array direction of the partition members. It is comprised by the some 1st row | line comprised by each partition member which inclines in the direction, and the some 2nd row | line | column comprised by each partition member which inclines in another direction. From this, when a load is applied to each settling device from above, most of the force acting on each partition member inclined in one direction and the force acting on each partition member inclined in the other direction are offset. be able to. Thereby, it is prevented that each sedimentation apparatus deform | transforms greatly with the said load, respectively. Moreover, the fall of the intensity | strength of each sedimentation apparatus by making all the inclination directions of each partition member the same is not caused.

  Further, according to the invention described in claim 8, a plurality of first rows constituted by each partition member inclined in one direction out of two directions along the arrangement direction of the partition members of each settling device, and others Among the plurality of second rows configured by the partition members inclined in the direction, at least one of the rows is continuously arranged in the arrangement direction of the partition members.

  From this, when each 1st row | line | column among each 1st row | line | column and each 2nd row | line | column is arrange | positioned in order from the space located in one edge among each said space in the space between each partition member. The other row is disposed in each remaining space including a space located at the other end of each space. In this case, when each sedimentation device is cleaned, first, in each flow path in each one row in a state where the injection direction of the high-pressure washing water is aligned with each partition member constituting each one row. Washing each flow path in each of the one row by jetting high pressure washing water, then changing the jet direction of the high pressure washing water along each partition member constituting each other row, In this state, each flow path can be cleaned by spraying high-pressure washing water into each flow path in the other row. Therefore, in this case, it is only necessary to change the injection direction of the high-pressure washing water once when washing each settling device.

  In addition, when each of the one row is continuously arranged in the arrangement direction of each partition member in each space excluding at least both ends of each space between the partition members, each other column is It arrange | positions in each remaining space including the space of at least both ends among spaces. In this case, when each of the settling devices is washed, first, in each of the partition members constituting the other row arranged at one end, the injection direction of the high-pressure washing water is aligned along the other row. Each flow passage is washed by injecting high-pressure washing water into each flow passage, and subsequently, the injection direction of the high-pressure washing water is changed along each partition member constituting each of the one row. In the state, each flow path is cleaned by spraying high-pressure washing water into each flow path in each said one row, and each partition member constituting the other row disposed at the other end Each of the flow paths can be cleaned by changing the jet direction of the high-pressure cleaning water so that the high pressure cleaning water is jetted into each flow path in the other row in this state. Therefore, in this case, the injection direction of the high-pressure washing water may be changed twice when washing each settling device.

  From the above, it is possible to wash a plurality of rows continuously with the injection direction of the high-pressure washing water fixed, so even if each settling device has a plurality of rows, each settling device It is possible to reliably prevent the trouble of the cleaning work as in the conventional case where it is necessary to change the jet direction of the high-pressure cleaning water for each row when cleaning.

  Therefore, it is possible to reliably and easily wash each settling device without causing a decrease in strength of each settling device.

  In addition, when the other rows are arranged in the remaining spaces including at least both ends of the spaces, the settling devices are adjacent to each other so that the partition members are parallel to each other. When arranged, at least two rows composed of partition members having the same inclination direction can be adjacent to each other. Thereby, it is not necessary to change the injection direction of the high-pressure washing water between the settling devices during the cleaning of the settling devices.

  Furthermore, since each partition member is inclined, when the suspended matter contained in the water flowing into each flow path formed between the partition members settles, many suspended matter is placed on the bottom surface of the sedimentation basin. It reaches the inclined surface of the partition member before reaching. This shortens the time from the rising of the suspended matter to the vicinity of the water surface until it settles, so as in the conventional case, the sedimentation efficiency of suspended matter compared to the case where each sedimentation device is not installed in the sedimentation basin. Can be reliably improved.

  Moreover, since each partition member inclines, the sedimentation area per unit area of the bottom face of a sedimentation tank increases substantially. As a result, as in the prior art, the ability to collect suspended solids can be reliably improved.

  According to the ninth aspect of the present invention, at least one of the plurality of rows composed of the tube members inclined in one direction and the plurality of rows composed of the tube members inclined in the other direction. Can be manufactured in a continuous manner in the arrangement direction of the partition members.

  The present invention will be described with reference to the illustrated embodiments.

  A sedimentation processing system 10 according to the present invention includes a sedimentation basin 11 as shown in FIG. In the illustrated example, the settling basin 11 includes a bottom wall 12 having a substantially rectangular plane, and four side walls 13 rising from the respective edge portions 12a of the bottom wall.

  In one side wall 13 (a side wall 13 located on the left side in FIG. 1) of the pair of side walls 13 facing each other, an inflow port 14 for flowing in river water, for example, is formed. .

  In the sedimentation basin 11, an inflow chamber 15 that opens to the outside of the sedimentation basin 11 at the inlet 14 and receives water flowing in through the inlet 14 is formed. Further, in the settling basin 11, a settling chamber 16 is formed which is in communication with the inflow chamber 15 and for precipitating suspended matters such as sludge contained in water flowing in from the inflow chamber.

  In the sedimentation chamber 16, a scraping device 17 is provided on the top surface 12 b of the bottom wall 12 to collect the suspended matter that has settled on the top surface 12 b of the bottom wall 12 in the sedimentation chamber 16, as in the prior art. Yes.

  In the portion of the bottom wall 12 in the inflow chamber 15, in the example shown in the figure, a storage portion 18 is formed for storing the suspended matter collected by the scraping device 17. The one side wall 13 is formed with a discharge port 19 that opens into the storage portion 18 and discharges the suspended matter accumulated in the storage portion to the outside of the sedimentation basin 11.

  In addition, a plurality of settling devices 20 for accelerating the settling of suspended matters contained in the water flowing into the settling chamber are disposed in the upper portion of the settling chamber 16. Each settling device 20 is a partition wall that partitions between the other side wall 13 (the side wall 13 positioned on the right side in FIG. 1) and the settling chamber 16 and the inflow chamber 15 of the pair of side walls 13 that face each other. 21. Further, each settling device 20 is placed on a plurality of support beams B arranged at a predetermined interval between the other side wall 13 and the partition wall 21, respectively. Supported by the material. As the water level in the settling basin 11 rises, the water in the settling chambers 16 passes through the settling devices 20 below, that is, from the settling chambers 16 to above the settling devices 20, thereby floating as described later. Is removed. A detailed description of the configuration and operation of each settling device 20 will be described later.

  Further, in the settling chamber 16, a water collection chamber 22 for collecting the water that has passed through each settling device 20, that is, the water from which suspended matters have been removed, is defined above each settling device 20. A plurality of water collection troughs 23 are arranged in the water collection chamber 22. Each of the water collecting troughs 23 is an eaves member that is in communication with each other, and includes a long bottom plate 24 and a pair of side plates 25 that rise from edge portions 24a that face each other in the width direction of the bottom plate. In each side plate 25, a plurality of inflow holes 25 a for allowing the water that has passed through each settling device 20 to flow in are formed in the longitudinal direction of each side plate 25 at predetermined intervals. The water flowing into each water collecting trough 23 through each inflow hole 25a is guided to a filtration pond (not shown) by each water collecting trough 23 as is well known.

  In the example shown in FIG. 2, the sedimentation device 20 according to the present invention includes five partition members 26 and a plurality of partition members 27.

  In the illustrated example, each partition member 26 is made of a synthetic resin material such as vinyl chloride, and is made of a rectangular sheet member. Each partition member 26 is arranged in parallel with a predetermined interval so that the longitudinal directions thereof coincide with each other. The sum of the thickness dimension of each partition member 26 and the dimension of the predetermined interval between the partition members 26 is the width dimension of the settling device 20. The width dimension of the settling device 20 is set to such a size that a required number of settling devices 20 can be placed on a transporting vehicle when the settling device is transported, and is approximately 370 mm as in the prior art. .

  In the example shown in the drawing, each partition member 27 is constituted by a tube member 28 made of a synthetic resin material such as vinyl chloride. As shown in FIG. 3, the tube members 28 are arranged between the partition members 26 at predetermined intervals in the longitudinal direction of the partition members. Each pipe member 28 is opposed to a pair of side walls 29 facing each other in the arrangement direction of the respective pipe members and a pair of partition wall members 26 sandwiching each pipe member 28, and a pair of side walls 29 connected to each other. And an end wall 30.

  The length dimension of each pipe member 28 along the width direction of the settling device 20 that is the arrangement direction of the partition wall members 26, that is, the width dimension of the side walls 29 is substantially equal to the size of the interval between the partition wall members 26. Thereby, in the state where each pipe member 28 is arranged between each partition member 26, each end wall 30 contacts each partition member 26, respectively. Thus, by arranging the tube members 28 between the partition members 26, the spaces between the partition members 26 are partitioned into a plurality of small spaces, and the partition members 26 are interposed between the partition members 26 between the partition members 26. And the some flow path 31 prescribed | regulated by each side wall 29 of each pipe member 28 is formed. Further, four rows formed of the tube members 28 are formed by the arrangement of the tube members 28 between the partition members 26.

  In addition, the width dimension of each side wall 29 is set to be larger than the size of the interval between the tube members 28, and is approximately 92 mm in the illustrated example.

  The width dimension of each end wall 30 is approximately equal to the size of the space between the tube members 28, and is approximately 50 mm in the illustrated example. As a result, a channel having a size substantially equal to that of each channel 31 is formed in each tube member 28. Each end wall 30 is bonded to the opposing partition wall member 26 by an adhesive, for example. Thereby, each pipe member 28 is fixed to each partition member 26.

  Further, in the illustrated example, the pipe members 28 are arranged so as to alternate between the partition members 26 in the width direction of the flow paths 31 formed between the pipe members 28 and the settling device 20.

  Further, each tube member 28 is inclined at a predetermined angle toward the longitudinal direction of each partition wall member 26 which is the arrangement direction thereof. In the illustrated example, the inclination angle of each pipe member 28 with respect to the longitudinal direction of each partition wall member 26 is set to 60 °.

  The four rows formed by the arrangement of the pipe members 28 between the partition members 26 are composed of a plurality of first rows 32 and a plurality of second rows 33. Each first row 32 is inclined toward the right as viewed in FIG. 3 out of two directions along the longitudinal direction of each partition wall member 26 (in FIG. 3, the arrow indicates the inclination direction of each tube member 28). Shown) It is composed of a plurality of pipe members 28. Each second row 33 is composed of a plurality of pipe members 28 that incline toward the left as viewed in FIG.

  At least one of the first row 32 and the second row 33 is continuously arranged in the width direction of the settling device 20 (the vertical direction as viewed in FIG. 3). ing. In the present embodiment, as shown in FIGS. 3 and 4, each first row 32 is continuously arranged in the width direction of the settling device 20, and the four spaces defined by the respective partition members 26 are included. Of these, they are arranged in the second space and the third space from the top as seen in FIG. Accordingly, the second rows 33 are respectively arranged in the first space and the fourth space from the top as viewed in FIG.

  The plurality of settling devices 20 are adjacent to each other in the settling basin 11 so that the partition members 26 are parallel to each other and the width direction of each settling device 20 is along the vertical direction of the settling basin 11. And the water collecting chamber 22. Thereby, in the state where each sedimentation device 20 is arranged in the sedimentation basin 11, as shown in FIG. 1, each pipe member 28 and each flow path 31 are respectively located in the sedimentation chamber 16 and the water collection chamber 22. Open.

  When the suspended matter contained in the water flowing into the pipe members 28 and the flow paths 31 from the settling chamber 16 sinks due to the rise of the water level in the settling basin 11, the pipe members 28 are inclined. The suspended matter that settles in each pipe member 28 is out of the inclined surfaces of one side wall 29 located on the inclined direction side of the pair of side walls 29 before reaching the bottom surface of the settling basin. Floating matter that reaches the inclined surface 29a (see FIG. 5) located on the inner side of each pipe member 28 and settles in each flow path 31 reaches each pipe member 28 before reaching the bottom surface of the settling basin. Of the inclined surfaces of the other side wall 29, the inclined surface 29b located on the outer side of each pipe member 28 is reached. That is, as shown in FIG. 5, the suspended matter flowing into each pipe member 28 and each flow path 31 is settled if it settles by h. Thereby, an effect equivalent to that of a plurality of sedimentation basins having a depth of h can be obtained. Therefore, compared with the case where each settling device 20 is not installed in the settling basin 11, the distance required for the suspended matter rising near the water surface to settle is shortened, so that the suspended matter rises near the water surface. It takes less time to settle.

  Moreover, the rising speed of water when water flows into each pipe member 28 and each flow path 31 is V, and the speed of water in each pipe member 28 and each flow path 31 is Vf. The sedimentation speed of the object is Vs, the inclination angle of each pipe member 28 is θ, the height dimension of each pipe member 28 in the inclined state is H, and the width dimension of each end wall 30 of each pipe member 28 is d. Then, from the relationship of V = H / T and Vs · cos θ = d / T (T is time), the relationship of (H / V) = (d / Vs · cos θ) is established. Therefore, the sedimentation velocity Vs is Vs = (d / Hcos θ) · V. Here, the dimension of each end wall 30 of each tube member 28 along the longitudinal direction of each partition member 26, that is, the size of the interval between each tube member 28 is P, and the length of each tube member 28 and each flow path 31 is set to P. When the dimension is L, d = Psinθ and H = Lsinθ, so Vs = (P / Lcosθ) · V.

Therefore, the settling area As of the settling device 20 per unit area of the upper surface 12b of the bottom wall 12 of the settling basin 11 is As = as / P, where as the settling area of each pipe member 28 and each flow path 31 is as. = L cos θ / P. In this embodiment, when d = 0.05 [m], θ = 60 °, and L = 0.61 [m],
As = L cos θ / P = L sin θ cos θ / d
= (0.61 × sin 60 ° × cos 60 °) /0.05
= 5.3 (m ² / m ² )
Thus, when the settling device 20 is arranged in the settling basin 11, the settling area is 5.3 times that of the case where the settling device 20 is not arranged.

  When assembling such a settling device 20, first, a predetermined interval is provided on one side of the partition wall member 26 in the longitudinal direction of the partition wall member 26 and is inclined from one end 26 a to the other end 26 b of the partition wall member 26. Each pipe member 28 is arranged, and one end wall 30 located on the partition wall member 26 side among the pair of end walls 30 of each pipe member is attached to the partition wall member 26 using, for example, an adhesive. As a result, the first assembly 34 (see FIG. 1) is constituted by a single partition member 26 and a plurality of pipe members 28 inclined from one end 26a to the other end 26b when the partition member is viewed from the one side. 3 and FIG. 4). As shown in FIG. 3, pipe members 28 are respectively disposed at both ends 26 a and 26 b of the partition wall member 26 of the first assembly 34.

  Subsequently, an upper end 28 a (see FIGS. 3 and 4) is provided on one side of the partition member 26, which is different from the partition member 26 of the first assembly 34, and the upper end of each pipe member 28 of the first assembly 34. 28a, the pipe members 28 are respectively arranged so as to be inclined in the direction opposite to the inclination direction of the pipe members 28 of the first assembly 34, and the one end wall 30 of each pipe member is arranged respectively. The partition member 26 is attached using, for example, an adhesive. As a result, the second assembly 35 (see FIG. 3 and FIG. 3), which is composed of a single partition member 26 and a plurality of pipe members 28 inclined from the other end to one end when the partition member is viewed from the one side. (See FIG. 4). As shown in FIG. 3, the pipe members 28 are not disposed at both ends 26 a and 26 b of the partition wall member 26 of the second assembly 35, respectively, and a flow path 31 is formed.

  In the illustrated example, two each of the first assembly 34 and the second assembly 35 are formed.

  Next, the other end wall 30 of each pipe member 28 of the first assembly 34 of the two first assemblies 34 is the surface on the other side of the partition member 26 of the second assembly 35. The one first assembly 34 is arranged so as to face each other, and the other end walls 30 of the respective pipe members 28 of the first assembly are respectively connected to the partition members of the one second assembly 35. It attaches to the said other side surface of 26, for example using an adhesive agent. As a result, the one first assembly 34 and the one second assembly 35 are integrally joined.

  Further, the other second wall 35 of the other second assembly 35 is arranged so that the other end wall 30 faces the other surface of the partition member 26 of the other first assembly 34. An assembly 35 is arranged, and each other end wall 30 of each pipe member 28 of the second assembly is placed on the other surface of the partition member 26 of the other first assembly 34, for example, an adhesive. Install using. Thereby, the other first assembly 34 and the other second assembly 35 are integrally joined.

  Subsequently, the other second assembly is arranged such that the upper end 28a of each tube member 28 of the other first assembly 34 is positioned between the tube members 28 of the one second assembly 35. The other first assembly 34 to which the assembly 35 is joined and the one second assembly 35 to which the one first assembly 34 is connected are arranged close to each other.

  In this state, the partition member 26 is inserted between each tube member 28 of the one second assembly 35 and each tube member 28 of the other first assembly 34, and one of the partition members The other end wall 30 of each pipe member 28 of the one second assembly 35 is attached to the surface using, for example, an adhesive, and the other first set is attached to the other surface of the inserted partition wall member 26. The other end wall 30 of each pipe member 28 of the solid 34 is attached using, for example, an adhesive.

  Accordingly, each first assembly 34 and each second assembly are interposed via the partition wall member 26 inserted between the one second assembly 35 and the other first assembly 34. 35 are integrally joined to each other, and the assembly of the settling device 20 is completed.

  According to the present embodiment, as described above, the plurality of rows constituted by the partition members 27 respectively arranged between the partition wall members 26 is one of the two directions along the array direction of the partition members 27. Each of the plurality of first rows 32 is composed of partition members 27 that are inclined to each other, and the plurality of second rows 33 is composed of partition members 27 that are inclined in the other direction.

  From this, when a load is applied to the settling device 20 from above, most of the force acting on each partition member 27 inclined in one direction and the force acting on each partition member 27 inclined in the other direction are offset. can do. This prevents the settling device 20 from being greatly deformed by the load. Moreover, the fall of the intensity | strength of the sedimentation apparatus 20 by making all the inclination directions of each partition member 27 the same is not caused.

  Moreover, it comprised with the some 1st row | line | column 32 comprised by each partition member 27 inclined in one direction among the two directions along the arrangement direction of the partition member 27, and each partition member 27 inclined in the other direction. At least one of the plurality of second rows 33 is continuously arranged in the arrangement direction of the partition wall members 26.

  Therefore, one of the first rows 32 and the second rows 33 is sequentially arranged in the space between the partition members 26 from the space located at one end of the spaces. The other rows are arranged in the remaining spaces including the space located at the other end of the spaces. In this case, when washing the settling device 20, first, in each flow path 31 in each of the one row in a state where the partition member 27 constituting each of the one row is aligned with the injection direction of the high-pressure washing water. The flow path 31 in each of the one row is washed by spraying the high-pressure wash water on the first row, and then the injection direction of the high pressure wash water is set along the partition members 27 constituting the other row. In this state, each flow path 31 can be cleaned by injecting high-pressure washing water into each flow path 31 in the other row. Therefore, in this case, it is only necessary to change the jet direction of the high-pressure washing water once when washing the settling device 20.

  Moreover, when each said row | line | column is continuously arrange | positioned in the width direction of the sedimentation apparatus 20 in each space except at least both ends among each space between each partition member 26, each other row | line | column is each said It arrange | positions in each remaining space including the space of at least both ends among each space. In this case, when the settling device 20 is washed, first, the partition members 27 constituting the other row arranged at one end are placed in the other row with the injection direction of the high-pressure washing water aligned. Each flow passage 31 is washed by jetting high-pressure washing water into each flow passage 31, and then the injection direction of the high-pressure washing water is changed along each partition member 27 constituting each of the one row. In this state, each flow path 31 is washed by injecting high-pressure washing water into each flow path 31 in each of the one row, and the other row arranged at the other end is configured. The injection direction of the high-pressure washing water is changed so as to follow each partition member 27 to be performed, and the respective flow paths 31 are washed by injecting the high-pressure washing water into the respective flow paths 31 in the other row in this state. be able to. Therefore, in this case, the jetting direction of the high-pressure washing water may be changed twice when washing the settling device 20.

  From the above, a plurality of rows can be continuously washed in a state where the injection direction of the high-pressure washing water is fixed. Therefore, even when a large number of rows are formed in the settling device 20, the settling device 20 is washed. In doing so, it is possible to reliably prevent the complication of the cleaning operation as in the conventional case where it is necessary to change the injection direction of the high-pressure cleaning water for each row.

  Therefore, the settling device 20 can be reliably and easily cleaned without causing a decrease in the strength of the settling device 20.

  Furthermore, when the suspended matter contained in the water flowing into each flow path 31 formed between each partition wall member 26 and each pipe member 28 which is the partition member 27 sinks, many suspended matters are stored in the sedimentation basin 11. Before reaching the upper surface 12b of the bottom wall 12, the inclined surfaces 29a and 29b of the pipe members 28 are reached. As a result, since the time until the suspended matter rises to the vicinity of the water surface and settles becomes shorter, the sedimentation of the suspended matter than in the case where the settling device 20 is not installed in the settling basin 11 as in the prior art. Efficiency can be improved reliably.

  Further, since each partition member 27 is inclined, the settling area per unit area of the upper surface 12b of the bottom wall 12 of the settling basin 11 is substantially increased. As a result, as in the prior art, the ability to collect suspended solids can be reliably improved. Moreover, since the sedimentation area increases, the area of the sedimentation basin 11 can be reduced by installing the sedimentation device 20 in the sedimentation basin 11.

  Further, according to the present embodiment, as described above, the width dimension of each side wall 29 of each tube member 28 along the width direction of the settling device 20 is larger than the size of the interval between each tube member 28.

  In recent years, in order to improve the assembly workability of the settling device 20 in order to reduce the manufacturing cost of the settling device 20, it is desired to reduce the number of partition members 27 used in the settling device 20.

  In order to reduce the number of partition members 27, it is conceivable to simply reduce the number of partition members 27 constituting each row without changing the spacing between the partition members 27 constituting each row.

  However, in this case, since the length dimension of the settling device 20 along the longitudinal direction of each partition wall member 26 becomes small, when a plurality of settling devices 20 are spread in a predetermined region of the settling basin 11, the number of the partition members 27 is increased. More sedimentation devices 20 are required than before the reduction. For this reason, the operation | work which arrange | positions each sedimentation apparatus 20 in the sedimentation basin 11 becomes complicated.

  Therefore, the number of partition members 27 constituting each row is reduced, and further, the size of the interval between the partition members 27 constituting each row is set so that the length dimension of the settling device 20 does not change. It is possible to change.

  However, the collection capacity of the suspended matter of the settling device 20, that is, the size of the settling area, depends on the size of the interval between the partition members 27 as is well known in the art. Therefore, if the interval between the partition members 27 is changed, there is a possibility that the collection capability of the settling device 20 is reduced.

  In order to reduce the number of partition members 27 without changing the length dimension of the settling device 20 and the interval between the partition members 27, it is conceivable to reduce the number of rows formed by the partition members 27.

  However, in this case, since the length dimension of the settling device 20 along the width direction of the settling device 20 becomes small, when a plurality of settling devices 20 are spread in a predetermined region of the settling basin 11, before the number of rows is reduced. Compared to the above, a larger number of settling devices 20 are required. For this reason, the operation | work which arrange | positions each sedimentation apparatus 20 in the sedimentation basin 11 becomes complicated similarly to the case where the number of the partition members 27 is reduced, without changing the space | interval between each partition member 27. FIG.

  On the other hand, according to the present invention, as described above, the width dimension of each side wall 29 of each pipe member 28 which is the partition member 27 along the width direction of the settling device 20 is set to a large distance between the pipe members 28. The length dimension of the sedimentation device 20 along the width direction of the sedimentation device 20, the length dimension of the sedimentation device 20 along the longitudinal direction of each partition wall member 26, and the interval between the tube members 28 are made larger. Without change, the number of rows formed by the tube members 28 is reduced as compared to the conventional case where the width dimension of the side walls 29 of the tube members 28 is substantially equal to the distance between the tube members 28. Can do.

  Thereby, by changing the lengths of the settling device 20, the arrangement work of the settling devices 20 in the settling tank 11 is complicated, or the size of the interval between the partition members 27 is changed. Thus, the number of the partition members 27 can be surely reduced without causing a decrease in the collecting ability of the settling device 20.

  Further, even when the width dimension of each side wall 29 of each pipe member 28 is increased, as long as the length dimension of the settling apparatus 20 along the width direction of the settling apparatus 20 does not change, The size of the sedimentation area does not change. Therefore, the collection capacity of the settling device 20 is not reduced by increasing the width dimension of each side wall 29 of each pipe member 28.

  Furthermore, by making the width dimension of each side wall 29 of each pipe member 28 larger than that of the conventional one, the cross-sectional area of each pipe member 28 and each flow path 31 is increased. Thereby, it is possible to reliably suppress so-called clogging in each pipe member 28 and each flow path 31.

  Furthermore, according to the present embodiment, as described above, the pipe member 28 that is the partition member 27 is fixed to each partition wall member 26 by the pair of end walls 30, so that the partition member 27 is a plate member, for example. The contact area of the partition member 27 to each partition member 26 can be reliably increased as compared with the case where the plate member is fixed to each partition member 26 at the end face as in the case of being configured. Thereby, the fixing strength of the partition member 27 to each partition member 26 can be reliably increased.

  Moreover, since the pipe member 28 has a higher strength against bending force than the plate member, the overall strength of the settling device 20 can be increased by configuring the partition member 27 with the pipe member 28. Further, by forming the partition member 27 with the pipe member 28, the flow path 31 can be formed between the respective pipe members 28 between the respective partition members 26, and the inside of each pipe member 28 is used as a flow path. be able to.

  Further, according to the present embodiment, as described above, the pipe members 28 are alternately arranged in the width direction of the settling device 20 between the flow paths 31 formed between the pipe members 28 between the partition members 26. Therefore, the flow paths 31 are not adjacent to each other adjacent to each other, and are necessarily adjacent to the tube member 28 between the adjacent rows. Thereby, when water flows into each flow path 31, the pressure from the water can be received by each partition member 26 and each pipe member 28 adjacent to each flow path 31 via the partition member 26. Accordingly, when the pressure from the water flowing in the flow path 31 is received only by the partition wall member 26 as in the case where the flow paths 31 are adjacent to each other between the rows in which the inclination directions of the tube members 28 are the same. In comparison, the partition member 26 can be reliably prevented from being deformed by the pressure received from the water.

  Furthermore, according to the present embodiment, as described above, the number of rows formed by the tube members 28 is an even number.

  When the number of rows composed of the pipe members 28 arranged alternately between the partition walls 26 and the flow paths 31 formed between the pipe members 28 in the width direction of the settling device 20 is odd When the plurality of settling devices 20 are arranged adjacent to each other so that the longitudinal directions of the respective partition members 26 coincide with each other, the tube members 28 constituting two rows adjacent to each other between the settling devices 20 adjacent to each other. The flow paths 31 are adjacent to each other between the sedimentation devices 20 adjacent to each other via the partition members 26. For this reason, when the inclination directions of the pipe members 28 constituting the two rows adjacent to each other between the settling devices 20 adjacent to each other are the same, the channels 31 are adjacent to each other between the settling devices 20. When water flows, a part of the pressure from the water is divided between each pipe member 28 adjacent to each flow path 31 and each partition member 26 arranged between each pipe member 28 and each flow path 31. However, a part of the pressure is received only by the partition members 26 adjacent to each other between the settling devices 20. Accordingly, the partition wall members 26 adjacent to each other between the settling devices 20 may be deformed by the pressure received from the water.

  On the other hand, according to the present invention, as described above, since the number of rows formed by the tube members 28 is an even number, the flow path formed between the tube members 28 between the partition wall members 26. When the plurality of settling devices 20 in which the respective pipe members 28 are arranged so as to alternate with each other in the width direction of the settling devices 20 are arranged adjacent to each other so that the arrangement directions of the respective tube members 28 coincide with each other, The flow paths 31 between the tube members 28 constituting two rows adjacent to each other between the adjacent settling devices 20 are adjacent to the tube members 28 via the partition members 26 between the settling devices 20 adjacent to each other. To do. Thereby, even in the case where the inclination directions of the tube members 28 constituting the two rows adjacent to each other between the settling devices 20 adjacent to each other are the same, the flow paths 31 adjacent to each other between the settling devices 20 When water flows into the partition members 20, the pressure acting from the water on the partition members 26 adjacent to each other between the settling devices 20 is divided into the partition members 26 adjacent to the partition members 26 and the pipe members 28 adjacent to the partition members 26. It is received by. Therefore, it is possible to reliably prevent the partition member 26 from being deformed by the pressure received from the water, as compared with the case where the respective flow paths 31 are adjacent to each other between the adjacent sedimentation devices 20.

  Further, according to the present embodiment, as described above, the number of rows formed by the tube members 28 is four.

  In order to reduce the number of rows without changing the length dimension of the settling device 20 along the width direction of the settling device 20, the interval between the partition members 26 and the tube members 28 along the width direction of the settling device 20 are reduced. The length dimension, that is, the width dimension of each side wall 29 of each pipe member 28 needs to be increased. At this time, for example, when the number of columns of the settling device 20 having the number of columns of 7 is changed to 2, the interval between the partition members 26 is changed to 3.5 times the interval in the original shape, The length dimension of each pipe member 28 along the width direction of the settling device 20, that is, the width dimension of each side wall 29 of each pipe member 28 must be 3.5 times larger than the original dimension. As the width dimension of each side wall 29 of each tube member 28 increases, the strength of each side wall 29 with respect to the bending force decreases as compared with the original shape, and therefore the strength of the entire tube member 28 with respect to the bending force decreases.

  On the other hand, according to the present invention, as described above, since the number of rows formed by the pipe members 28 is 4 or more, for example, the number of rows of the sedimentation device 20 in which the number of rows is 7 is set. In the case of changing to 4, it is sufficient to change the distance between the partition members 26 and the width dimension of the side walls 29 of the pipe members 28 to 1.75 times the size of the original shape. Thus, as the number of rows is changed from 7 to 2, the strength of each side wall 29 with respect to the bending force is not greatly reduced compared to that in the original shape. Therefore, the number of rows of the settling devices 20 can be reduced without causing a significant decrease in strength with respect to the bending force of the entire pipe member 28.

  In this embodiment, as shown in FIG. 6, among the flow paths 31 formed between the partition wall members 26, the flow paths 31 facing the corners 26 c of the partition wall members 26 enter the flow paths. It is possible to provide a reinforcing member 36 for allowing the water to flow and reinforcing each corner portion 26c.

  In the illustrated example, the tube members 28 are alternately arranged in the width direction of the flow paths 31 and the settling device 20, and the number of rows formed of the tube members 28 is an even number. For example, the right end of the first row from the top in FIG. 3 is defined by the side wall 29 of the tube member 28 and the corner portion 26c of the pair of partition members 26 that sandwich the tube member, and is orthogonal to the longitudinal direction of each partition member 26. A flow path 31 ′ is formed to open in the direction and outward in the longitudinal direction of each partition wall member 26. In the illustrated example, a reinforcing member 36 is provided in the flow path 31 '.

  A corner portion 26c of each partition member 26 is disposed at the right end by inclining each tube member 28 between the first partition member 26 and the second partition member 26, respectively. A triangular shape protruding from the tube member 28 is formed.

  The reinforcing member 36 is formed of the same material as the tube member 28 in the illustrated example. Further, in the example shown in FIG. 6A, the reinforcing member 36 rises from a base portion 37 made of a plate member having a rectangular plane and a pair of side edge portions 37a facing each other in the short side direction of the base portion. Side wall 38.

  The base portion 37 has a size approximately equal to the size of one side wall 29 located on the channel 31 ′ side of the pair of side walls 29 of the pipe member 28 disposed adjacent to the channel 31 ′ in the longitudinal direction of the partition wall member 26. Have equal size. As shown in FIG. 6B, the base 37 is disposed so as to face the one side wall 29, and is fixed to the one side wall 29 by a fastener such as an adhesive.

  As shown in FIG. 6A, each side wall 38 has substantially the same size as the triangular corner portion 26 c of each partition wall member 26, and has a triangular shape that tapers away from the base portion 37. . As shown in FIG. 6 (b), each side wall 38 is disposed in the flow path 31 'so as to face the corner portion 26c of each partition wall member 26. For example, each side wall 38 is connected to each corner by a fastener such as an adhesive. It is fixed to the part 26c. At this time, since the size of each side wall 38 is substantially the same as the corner portion 26 c of each partition wall member 26, the front end of each side wall 38 is aligned with the front end of each partition wall member 26. Thereby, each side wall 38 of the reinforcing member 36 is integrally joined with the corner portion 26c of each partition wall member 26, and the thickness of each corner portion 26c is substantially increased.

  When the reinforcing member 36 is not provided in the flow path 31 ′, the tip of the corner portion 26 c of the partition wall member 26 located on the outer side of the settling member 20 among the partition wall members 26 defining the flow path 31 ′ Become free end. Therefore, when a bending force that bends the corner acts on the corner portion 26c of the partition wall member 26, most of the bending force is not received, and the corner portion 26c may be bent or deformed.

  On the other hand, according to the example shown in FIG. 6, as described above, in order to reinforce each corner 26 c in the channel 31 facing each corner 26 c of each partition wall member 26 among the channels 31. Since the reinforcing member 36 is provided, when a bending force that bends the corner acts on the corner 26c of the partition wall member 26 whose tip is a free end, the bending force is applied to each side wall 38 of the reinforcing member 36. Can be transmitted. Thereby, it is possible to reliably suppress bending deformation and breakage in the corner portion 26c due to the reinforcing action of the reinforcing member 36.

  Moreover, when the water level in the sedimentation basin 11 rises, water can be received in the space surrounded by the base 37 and the side walls 38 of the reinforcing member 36. Thereby, since the reinforcement member 36 permits the flow of water into the flow path 31 ′, it is possible to reliably prevent the precipitation effect due to the flow path 31 ′ in which the reinforcement member 36 is disposed from being reduced.

  In the example shown in FIG. 6, the example in which the reinforcing member 36 is provided in the flow path 31 ′ formed at the right end of the first row from the top in FIG. 3 is shown, but instead of this, or In addition, a reinforcing member 36 can be provided in the flow channel 31 other than the flow channel 31 ′.

  In the example shown in FIG. 6, a connecting member that connects the side walls 38 to each other can be provided between the tips of the side walls 38 of the reinforcing member 36. In this case, when a bending force acting on the corner portion 26c of each partition member 26 acts on each side wall 38, the bending force acts on the connecting member as a compressive force for compressing the connecting member. Thereby, the said bending force can be more reliably received by each side wall 38 and the said connection member. Therefore, it is possible to more surely prevent the corner portion 26c from being bent and damaged.

  Further, in the example shown in FIG. 6, an example in which the reinforcing member 36 has the base portion 37 and each side wall 38 is shown. However, instead of this, water is allowed to flow into each flow path 31 and each corner portion 26 c is formed. If it can be reinforced, a reinforcing member other than the reinforcing member 36 shown in FIG. 6 can be applied to the present invention.

  In the example shown in FIG. 1 to FIG. 6, the example in which each first row 32 is continuously arranged in the width direction of the settling device 20 is shown. It can arrange | position continuously in the width direction of the sedimentation apparatus 20. FIG.

  Further, in the example shown in FIGS. 1 to 6, each first row 32 is arranged continuously in the width direction of the settling device 20, and is a diagram of four spaces defined by each partition wall member 26. 3 are respectively arranged in the second space and the third space from the top as seen in FIG. 3, and each second row 33 is respectively in the first space and the fourth space from the top as seen in FIG. In the example shown in FIG. 7, for example, as shown in FIG. 7, the first rows 32 are arranged in the first and second spaces from the top when viewed in FIG. The second rows 33 can be arranged in the third and fourth spaces from the top as viewed in FIG.

  In this case, each of the first rows 32 and the second rows 33 is continuously arranged in the width direction of the settling device 20.

  In this case, when assembling the settling device 20, the upper end 28 a is on one side of the partition member 26, which is different from the partition member 26 of the first assembly 34, and the upper end 28 a of each pipe member 28 of the first assembly 34. By attaching the one end wall 30 of each pipe member 28 located between them and inclined in the same direction as the inclination direction of each pipe member 28 of the first assembly 34 to the partition wall member 26, A second assembly 35 can be formed.

  In the example shown in FIGS. 1 to 7, an example in which the number of rows formed by each tube member 28 is four is shown. However, instead of this, the number of rows can be six, for example. In this case, for example, the number of each first example 32 and each second column 33 can be three, or each one column can be four and the other column can be two. Can be one.

  Further, in the example shown in FIGS. 1 to 7, the tube members 28 constituting the first rows 32 and the second rows 33 are formed between the tube members 28 between the partition members 26. However, instead of this, in the first row 32 and the second row 33, the settling device 20 Only the tube members 28 constituting one row arranged continuously along the width direction are arranged so as to alternate in the width direction of the flow path 31 and the settling device 20 between the one row, respectively. can do. In this case, the flow paths 31 in each row are prevented from being adjacent to each other between the one row where the inclination directions of the tube members 28 are the same, so The deformation of the partition wall member 26 due to the pressure received from the water flowing in the flow path 31 can be reliably prevented.

  Furthermore, in the example shown in FIGS. 1 to 7, the example in which the partition member 27 is configured by the pipe member 28 is shown, but instead, the partition member 27 can be configured by a plate member, for example. In this case, the plate members are connected in series in the width direction of the settling device without interchanging in the width direction of the flow channel 31 and the settling device 20 formed between the plate members between the partition members 26, respectively. Can be arranged. Further, if the space between the partition members 26 can be partitioned into a plurality of flow paths 31, members other than the pipe member 28 and the plate member can be used as the partition member 27.

It is a cross-sectional view schematically showing a sedimentation basin according to the present invention. 1 is a perspective view schematically showing a sedimentation device according to the present invention. It is a top view which shows schematically the sedimentation apparatus which concerns on this invention. 1 is an exploded perspective view schematically showing a sedimentation device according to the present invention. It is explanatory drawing for demonstrating the sedimentation effect | action of the sedimentation apparatus which concerns on this invention. (A) is a perspective view which shows schematically the reinforcement member which concerns on this invention, (b) is a perspective view which shows schematically the sedimentation apparatus provided with the reinforcement member. It is a top view which shows roughly the sedimentation apparatus which concerns on an Example different from the example shown in FIG. 1 thru | or FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sedimentation processing system 11 Sedimentation basin 20 Sedimentation apparatus 26 Partition member 26c Corner | angular part 27 Partition member (pipe member)
29 side wall (side wall of pipe member)
30 end wall (end wall of pipe member)
31 Flow path 32 First row 33 Second row 34 First assembly 35 Second assembly 36 Reinforcing member

Claims (9)

  A settling device arranged in a settling basin for accelerating the settling of floating substances contained in water flowing into the settling pond, each of which is arranged in parallel and at a predetermined interval In order to partition the space between the partition members into a plurality of flow paths, the partition members are arranged at predetermined intervals along the partition members, and inclined at a predetermined angle toward the arrangement direction. And a plurality of rows formed by the partition members arranged between the partition members are inclined in one of two directions along the arrangement direction of the partition members. It is composed of a plurality of first rows composed of the partition members and a plurality of second rows composed of the partition members inclined in the other direction, and the first rows and the At least one of said second columns Columns, settling apparatus characterized by being arranged continuously in the arranging direction of the partition member.   The settling device according to claim 1, wherein a length dimension of each partition member along an arrangement direction of each partition member is larger than a size of an interval between the partition members.   Each of the partition members is a tube member having a rectangular cross section, and each of the tube members includes a pair of side walls facing each other in the arrangement direction of the partition members, and a pair of the partition walls sandwiching the tube members The settling device according to claim 1 or 2, further comprising a pair of end walls facing the member and connecting the side walls to each other, the end walls being fixed to the partition members. .   The tube members constituting at least one of the first rows and the second rows are arranged in the direction in which the flow paths and the partition members are arranged between the one rows, respectively. 4. The settling device according to claim 3, wherein the settling devices are arranged alternately.   Each of the partition members has a rectangular shape extending along the arrangement direction of each of the partition members, and in each of the flow paths facing each corner of each of the partition members, The settling device according to claim 4, wherein a reinforcing member is provided for allowing water to flow into the flow path and reinforcing the corners.   The sedimentation apparatus according to claim 4 or 5, wherein the number of the rows constituted by the tube members is an even number.   The settling device according to claim 6, wherein the number of the rows is 4 or more.   A settling basin into which water flows, a plurality of settling devices arranged in the settling basin to promote sedimentation of suspended matter contained in the water flowing into the settling pond, and above the settling devices in the settling pond And a water collection trough for collecting water that has passed through each of the settling devices, wherein each of the settling devices is arranged in parallel and at a predetermined interval. A partition member and a space between the partition members are arranged at predetermined intervals along the partition members between the partition members so as to partition the spaces between the partition members into a plurality of flow paths. A plurality of partition members inclined at an angle, and the partition members are arranged adjacent to each other so as to be parallel to each other, and each partition member is arranged between the partition members. Multiple columns Among the two directions along the arrangement direction of the partition members, a plurality of first rows composed of the partition members inclined in one direction and a plurality of first rows composed of the partition members inclined in the other direction. Each of the first rows and the second rows is arranged continuously in the arrangement direction of the partition wall members. Characterized precipitation treatment system. A plurality of partition members each arranged in parallel and at a predetermined interval, and a predetermined distance along each partition member between the partition members to partition a space between the partition members into a plurality of flow paths. A method of manufacturing a settling device comprising a plurality of pipe members arranged at intervals of
Each said pipe | tube arrange | positioned in one side of this partition member among these partition members at predetermined intervals in the longitudinal direction of this partition member, and inclining toward the other end from this partition member Forming at least two first assemblies in which pipe members are respectively disposed at both ends of the partition member by attaching members to the partition member,
On the one side of the partition member different from the partition member of each first assembly, the upper end is located between the upper ends of the tube members of the first assembly, and the first assembly At least two flow paths are formed at both ends of the partition member by attaching the tube members arranged so as to be inclined in the same direction as the inclination direction of the tube members or in the opposite direction to the partition member. Forming two second assemblies,
The one first assembly is disposed so that each pipe member of one of the first assemblies faces the other surface of the partition member of one of the second assemblies, Attaching each of the tube members of one assembly to the other surface of the partition member of the one second assembly;
The other second assembly is disposed so that each pipe member of the other second assembly faces the other surface of the partition member of the other first assembly, Attaching each pipe member of the second assembly to the other surface of the partition member of the other first assembly;
The other first assembly and the one so that the position of the upper end of each tube member of the other first assembly is located between the tube members of the one second assembly. In a state where the second assemblies are arranged close to each other, the tube members of the one second assembly and the tube members of the other first assembly, The partition member different from the partition member of each first assembly and each second assembly is inserted, and each of the second assemblies is inserted into one surface of the partition member. Attaching each pipe member, attaching each said pipe member of said other first assembly to the other side of said inserted partition member;
The manufacturing method of the sedimentation apparatus characterized by including.

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